Exoplanet orbiting Proxima Centauri?

[Tom]

ESO Announcement To Address Reports Of Proxima Centauri Exoplanet - Universe Today

If confirmed, this is really exciting. That system will almost certainly be the first we visit, being so near. And who knows, an earth-sized world so close to us, in its star's habitable zone, might prompt a heck of a lot of interest in developing technology that might allow us to image it directly.

 

[SilverHood]

We are all just living in someone's Civilization simulation.

 

[Job]

Yeah, but what if they're living in one as well.

 

[Job]

ESO Announcement To Address Reports Of Proxima Centauri Exoplanet - Universe Today

If confirmed, this is really exciting. That system will almost certainly be the first we visit, being so near. And who knows, an earth-sized world so close to us, in its star's habitable zone, might prompt a heck of a lot of interest in developing technology that might allow us to image it directly.

4 light years away, get a laser powered micro sat up to 10% light speed..40 odd years plus 4 to beam back, we should concentrate on this, not sending humans to Mars.

Edit, technology is feasible.

Lasers Could Send A Wafer-Thin Spaceship To A Star

 

[Job]

This Nasa video explains how we look for them in ordinary joe language.

Hunting Exoplanets with Starshades:
View: http://youtu.be/3rUjJPvo_6k

 

[DaGaffer]

Proxima would make for a very different type of "habitable" to Earth. It'll be fucking dark for a start (Proxima has a tiny fraction of the Sun's luminosity, so anything that evolved would see in the infra-red). A "goldilocks" planet would also be very close in with a short year.

Really interesting though, and it was only a couple of weeks ago that SETI researchers were suggesting dwarf stars might be a better bet than G-type stars because they last so long (lots of time for evolution to have lots of tries).

 

[Tom]

There's a Planet Like Earth Orbiting the Nearest Star

Confirmed. Slightly larger than Earth, orbiting in the star's habitable zone. Capable of supporting liquid water.

 

[Raven]

Exciting times!

 

[Moriath]

In a few thousand years when we can get there lol

 

[Wij]

Tidally locked and subject to solar flares probably. I'm not booking my holiday there.

 

[Job]

Nasa closer to a submarine on Titan, they've made a childish concept video of it.

https://www.inverse.com/article/20221-life-seeking-nasa-submarine-on-titan-will-be-autonomous

 

[Job]

Beautiful short film with Carl Sagan narration from his book

The Wanderers


View: https://youtu.be/Q6goNzXrmFs

 

[Tom]

Well hopefully this baby will soon be in position to answer this question:

Nasa begins testing enormous space telescope made of gold mirrors

 

[Job]

enough power to detect the body heat of a bumblebee on the moon.


holy crap

 

[Wij]

enough power to detect the body heat of a bumblebee on the moon.


holy crap

But that's just peanuts to space.

 

[old.user4556]

But that's just peanuts to space.

Don't you butt my penis in your space.

 

[fettoken]

Can one tell the gravity of this new 'habitable' planet?

 

[Raven]

They can make educated guesses from size and so on but not exactly.

 

[fettoken]

Can we get some pros and cons for higher or lower gravity as well, please!

 

[dysfunction]

Can we get some pros and cons for higher or lower gravity as well, please!

Humans have evolved for Earths gravity so in extremely simple terms:

Low gravity you bounce away and then get very weak and dangly.
High gravity makes you move very slowly and crushes you to a pulp.

 

[fettoken]

Humans have evolved for Earths gravity so in extremely simple terms:

Low gravity you bounce away and then get very weak and dangly.
High gravity makes you move very slowly and crushes you to a pulp.

I'm well aware. Thanks. I'm thinking a few steps ahead here, such as what would a gravity of 0.5 of our current one mean, in terms of practical use - Architecture, sports, life quality, sanitation etc.

Also, you can simulate low gravity, but, can you simulate a higher gravitational pull?

 

[Scouse]

Also, you can simulate low gravity, but, can you simulate a higher gravitational pull?

Other way round - you can't really simulate low gravity (if you're in the water you can have assistance from bouyancy but you still experience the same gravity) but you can simulate higher gravitational pull with rotational force, which feels the same.

 

[gohan]

Yeah can simulate 0g but not low g. And high g is only in seated form for take off etc. Never seen simulations for like 1.5 or 2gs as what would be the point? Also I imagine the effects would take a while to be noticeable other than the obvious of everything feeling light/heavy

 

[SilverHood]

Yeah can simulate 0g but not low g. And high g is only in seated form for take off etc. Never seen simulations for like 1.5 or 2gs as what would be the point? Also I imagine the effects would take a while to be noticeable other than the obvious of everything feeling light/heavy

I mean, with enough money and time, you can do anything. Build a massive zero g generator. Then inside that, simulate whatever g you want?

 

[Job]

They trained the moon astronauts with a simple elastic rope lifting them up.
High G...just add weights to your torso and arms.

 

[Raven]

and every cell of your body.

 

[fettoken]

I've read now that there's no real zero gravity or microgravity, since there's always a gravitational pull, hence the planets orbiting around the sun and affecting each other, a more sufficient term would be to call it 'free-fall mode'. For example, in a space-station orbiting the earth, from which the space-station itself travels around 17.500 mph, so you are rather travelling/falling with the object.

 

[Raven]

Everything in existence has gravity

 

[fettoken]

Would there still be saggy tits if we had a lower gravitational pull?

 

[Wij]

They trained the moon astronauts with a simple elastic rope lifting them up.
High G...just add weights to your torso and arms.

Acceleration due to gravity is constant regardless of mass. This would be a poor simulation.